<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<title>
	</title>
	<style type="text/css">
		body{
			background-image: url("image/1.jpg");
			background-size: cover;
			text-align: center;
		}
		h1{
			color: white;
			opacity: 0.5;
			font-size: 100px;
			text-shadow: 1px 1px 2px black, 0 0 25px blue, 0 0 5px darkblue;
		}
	</style>
</head>
<body>
	<h1>超市收银系统</h1>
</body>
</html>